Frameworks: privacy guard fix UI freeze

randomly sometimes the complete UI freezes when toggle
privacy guard. Move out the forcekill from syncronized to
fix it so that it kills the app when all threads are open
and they can react to the forcekill which cannot result then in unknown states

cheers

Change-Id: I81514dc5ca9149477ee747a7d90720b83f741baa
Don't enable GPS if the requesting app is blacklisted.

This is transparent to the app, it just sees no location callbacks as
before. It just avoids the additional unneeded battery drain.

Change-Id: Iff98bcc3a4ff724aea8763e08b687441bda9ede0